A U.S. woman has become an Internet star after making her own prosthetic leg out of colourful Lego bricks and posting the video to YouTube.

Christina Stephens, an occupational therapist and clinical researcher based out of St. Louis, Mo., lost her leg below the knee after sustaining an injury in January.

Stephens has since launched Facebook and YouTube pages, where she shares videos, resources and healthcare information for other amputees and caregivers under the name “AmputeeOT.”

Through peer education via social media, Stephens hopes to “offers insights from both sides of the therapeutic relationship between healthcare receiver and provider,” her Facebook page says.

Her YouTube station features a series of videos which offer information on a wide-array of topics like “How it feels to walk in a prosthetic leg” and “Getting an amputee tattoo!”

But it is the video called “My Legoleg- Amputee prosthetic leg made with Lego Bricks” that has captured people’s attention.

In the time-lapse video, Stephens is seen dumping out a crate of Lego blocks and sorting through them as she builds, fits and tests her own prosthetic leg.

Near the end of video – which runs just under six minutes – she stands up on her multi-coloured prosthesis and cautiously steps on it a few times.

The video, which was posted on June 12, has garnered over 270,000 hits and loads of glowing comments from viewers around the world.

One Brazilian Facebook user wrote: “I liked this initiative. (It’s) people like you who move the world and make it better.”

An occupational therapist from Canada wrote: “Thank you for showing how thinking outside the proverbial box is often a good thing. But I promise not to build Lego legs for my patients. I can't wait to show your video to my colleagues.”

Stephens explained that she decided to make the leg after a co-worker in her research lab suggested she give it a try.

“The joke’s on you – I went home and did it,” she said on her YouTube station.

However, she warns her viewers that the Lego prosthetic is not actually meant to be used.

“Please don’t do this yourself. I don’t want you to fall and get hurt!” she said. “Sometimes you just need to be silly.”